Greetings from (cloudy) Germany. Many battery problem threats exist in this forum and the world wide web. Unfortunately most of them reach hundreds of pages and after the 3rd or 4th page it slides away from any technical discussion and becomes very emotional. This is the reason why i´m going to open another one, which hopefully helps me. So here is my ....
... frame what happened:
I own a SGS2 GT-I9100, branding free. It´s almost half a year old. When i bourght it, it came with GB 2.3.4 which worked fine for me. At the beginning of this month i recived ICS via Kies. As a result of this update my phone became super slow. Almost all applications hung and chrashed. So i decited to manually go back to an older FW. I´ve choosen GB 2.3.5, as the look and feel was better for me, then 2.3.4.
... Problem:
Since i did the update to 4.0.3 my battery performance is 10 times worse in ->standby<- as it was with 2.3.4.
... what i did so for, to isolate the problem:
Many threads talk about an Android OS bug. After a long search it is still not clear to me, what this bug excatly means!?!? Apps, which drain the battery are not installed (there are no special Apps installed, except the ones which come with the FW). I have no widgets running and the phone is in Airplane mode. If is switch off the phones display i loose about 30% battery during one night (8 - 9 hours). With 2.3.4 it was about 3% per night. If i use my phone during the day (SMS, Calls, Wireless, 3G and music) it does not increase the battery usage very much. maybe 40% per 8 - 9 hours. I did a factory reset to my phone, installed cpu spy and switched the display off. Analysis show 99% Deep Sleep. nevertheless it uses 30% battery during this time.
In summary:
- German GB 2.3.4 got an update from K.I.E.S. to ICS 4.0.3 -> bad phone performance and battery drained
- Downgrade from German ICS 4.0.3 to German GB 2.3.5 following a procedure and firmware from android-galaxy dot info
- With GB 2.3.5 the performance returned back to normal but battery was still bad.
- Installed German GB following a procedure and firmware from android-galaxy dot info
- Performance was still good, but battery drained.
- Installed netherlands GB 2.3.5 and battery was still draining.
- Received ICS 4.0.3 via software update. Fortunately the phones performance is still very good but the battery drains anyway.
All test where performed without any app installed and in flight mode.
Questions:
1. what ist the so called Android OS bug in connection with battery problems?
2. does anybody have the same problem and solved it?
3. is there any way to recive the stock rom, which came with my phone?
-> a friend of mine have the same SGS2 with GB 2.3.4 and without any battery problem.
Thanks for constructive, helpfull and unemotional technical feedback. If you have further question, send me a PN. I´ll summarize them, and add them to this post. It will keep it clearly and in coherence.
Why not rename General forum Q&A then users wont break the rules .
1. what ist the so called Android OS bug in connection with battery problems?
No search ???? read the Android OS Bug Post .
2. does anybody have the same problem and solved it?
Long time ago Android 2.3.6 .
3. is there any way to recive the stock rom, which came with my phone?
YES if you know what it was and can search for it .
BASICS
FAQ
http://forum.xda-developers.com/showthread.php?t=1065995
NEW HERE
http://forum.xda-developers.com/showthread.php?t=1134290
bible
http://forum.xda-developers.com/showthread.php?t=1473577
Guide
http://forum.xda-developers.com/showthread.php?t=1125282
Stock Roms .and csc
http://forum.xda-developers.com/showthread.php?t=1075278
Thanks for your quick reply. I found many things for "Android OS Bug", also solutions. For example: "Disable widgets" or "stop wireless sharing". Unfortunately nothing helped me.
If you kow about the same problem with the battery and how to solve it, please tell me. I searched for it and was not successful.
I know the page for Stock Roms and how to apply them. As you can read in my initial post i did some up- and downgrades. I went back to official 2.3.4 with existing battery problem.
Maybe this was a missunderstanding. I need to know if ther is any "smart" way, without rooting etc., to get a rom out of an existing phone, without the battery drain.
Regards, ... ibmuser2
theres a zip file for os drain prblm thts for ,wen the phone dosnt charge uptill 100..but still every android user faces a batt prblm,,but android phones r more like a pc..so it s power hungry
rocky23 said:
theres a zip file for os drain prblm thts for ,wen the phone dosnt charge uptill 100..but still every android user faces a batt prblm,,but android phones r more like a pc..so it s power hungry
Click to expand...
Click to collapse
Thx for your information.
My phone charges up to 100% (as far as it does not lie to me). ;-)
I do not complain about the power consumption. I complain about the difference between stock 2.3.4 and any ohter stock ROM / update i installed.
Regards, ibmuser2
ibmuser2 said:
Thx for your information.
My phone charges up to 100% (as far as it does not lie to me). ;-)
I do not complain about the power consumption. I complain about the difference between stock 2.3.4 and any ohter stock ROM / update i installed.
Regards, ibmuser2
Click to expand...
Click to collapse
Have you tried any custom roms?
Or contacted the retailer about this?
Maybe it is a hw problem.
It would suggest a battery fault tbh.
Flashing repeatedly can put strain on the battery (from my own experience), also as far as I am aware, the official update via KIES did cause battery related issues; I never experienced, but my friends did, and Samsung UK where troubleshooting by, removing the battery for 10 minutes, letting it drain out when put back in the phone, then performing a full charge when switched off. If not resolved > factory reset - which did help one of my friends surprise, surprise lol.
If you are still in first 6 months I would advise contacting Samsung Germany for a replacement battery to see if any improvement. Otherwise you can buy cheap online.
Hey superthug & T__. Thx for your good comments. I´ll give it a try. One of my friends have a SGS2 without any problem. I´m going to x-change it with him.
Cheers.
Hey Guys. I made some further testing, but it´s getting more ande more worse.
1. I x-changed the battery with another SGS2. My battery is draining and the other SGS2 is good. -> No battery fault.
2. I did many factory resets, installed betterybatterystats, but it shows no wake locks. all values are below 4%
3. I installed cpu spy, and it shows 98% Deep sleep, when not using it <---- as expected!
4. I changed my FW to:
I9100XWLP7_I9100XXLPS_I9100XEULP5
ICS 4.0.3
Base: I9100XXLPS
Kernel: 3.0.15-i9100XWLP7-CL340913
[email protected]#3
Build: IML74K.XWLP7
All was downloaded from this Forum. I9100XWLP7_I9100XXLPS_I9100XEULP5 is the default, which came with KIES. I verified this with another SGS2, running this FW trouble free!
5. When i charging my SGS2 now, it heats up extremly. The CPU is running at 1Ghz while external power is connected (not only during charging)
Any ideas?
Hi,
I am seeing the same issue. I noticed after upgrading to ICS that the phone was working well for a few days and battery life was good, then after I plugged it in to charge overnight (as I always do) I found that the battery had decreased and the phone was hot to touch near where the camera is located on the back the following morning.
I reset the phone to defaults and I was able to charge a couple of times but this didn't fix the problem and it started happening again.
I have tried charging from my laptop, and 2 separate USB chargers with different cables and the same fault has occured.
A reset of the phone seems to temporarily fix the issue and I can charge the phone again but when I plug in again to charge I see the battery decreasing.
It seems as if something is screwing up and causing the CPU to run at 100% when the charger is attached which would explain why the phone is warm/hot to touch.
I'm just testing at the moment to see if I can get the phone to a state where the charger is connected and the battery is decreasing to try to identify the cause. I suspect that it may have something to do with when the phone goes to sleep and the screen turns off so I will try to set the timeout to 10 mintues to see if this helps and the battery starts to charge again.
Suspend Mode bug + linux power management regressions: flight/airplane drains battery
Hi, I experienced a similar issue with GS2 i9100G. I also haven't found a clear and definite answer in the various forums I have been digging into.
To sum it up here's what I found:
Android 2.3.4 worked perfectly fine with GS2, but upgrade to 2.3.6 introduced a suspend mode bug. Basically Suspend mode would cause the system to enter a loop, thus the battery drain while in flight mode.
The best solution would be to downgrade/stay with Android 2.3.4 (when it ain't broke don't fix it).
Possible workarounds if you'd rather not fiddle with your OS version:
Wifi settings > advanced settings > Policy: Wifi always on (so as not to trigger suspend mode with wifi), then (optional) use a Battery Manager App to fine-tune the wifi activation. Wifi always on drains your battery, but less than the system loop if you're not constantly on the move.
Don't use flight mode, shut you phone at night and use a good old clock) (and redirect calls to your landline if you must)
Try and find the apps that require regular sync thru wifi and might be the sole culprit causing the system to enter the loop
Note that Android 2.3.4 is based on Linux kernel 2.6.32 and that Android 2.3.6 is based on kernel 2.6.35 which introduced a major power management regression.
The fix for this regression has not been fixed before current kernel 3.3 (although some developer may have backported the fix into 3.2), so I would advise to stay away from current Android 4.0.3 ICS which is based on kernel 3.0 (later versions will be based on kernel 3.2 though)
I am not sure if this is the root for the suspend mode bug or if both issues are independent, but in the meantime 2.3.4 works perfectly fine.
EDIT: upgrade to 2.3.6 then 4.0.3 really stand as blunders from Samsung on such high-end Smarphones. Regardless of the device, waiting for the upcoming Android version 4.0.5 seems the better choice if you want to enjoy ICS and not regret iOS...
Android 4.0.3, a version with well-documented problems, including the battery problem, rather than 4.0.5, which solves many of those problems?
Probably not. Probably, the slow nature of Android updates is to blame. It took six months for version 4.0.3 to wend its way through the system, meaning it could yet be months more before the updated update, version 4.0.5, reaches users.
Right now, it seems their only option is to go back to 2.3.6, just like they’re asking.
from Samsung users bitten by upgrade bug (May 7th, afr.com)
Click to expand...
Click to collapse
Suspend Mode bug causing flight/airplane mode to drain battery
After trying different things I came to the conclusion that it all comes down to apps who force themselves to run in the background when you install them and request frequent syncs (free apps will do whatever it takes to boost their ad revenue).
To me it's still a bug in the suspend mode (Apps shouldn't be allowed to request a connection while in Airplane mode, doing it triggers a loop of failed attempts) and Samsung overlooked it.
In the meantime the previous solutions I mentioned do work:
n°1 (lazy fast) - Wifi settings > advanced settings > Policy: Wifi always on (so as not to trigger suspend mode with wifi), then (optional) use a Battery Manager App to fine-tune the wifi activation. Wifi always on drains your battery, but less than the system loop if you're not constantly on the move.
n°2 (depends on the number of apps) - Try and find the apps that require regular sync thru wifi and might be the sole culprit causing the system to enter the loop
n°3 (last resort) - Don't use flight mode, try to turn off data instead or shut you phone at night and use a good old clock) (and redirect calls to your landline if you must)
Click to expand...
Click to collapse
A battery calibration shouldn't be of much help.
Eventually I read someone, with Android ICS 4.0.3 installed, who mentioned DTIM and explained that changing the default 5ms to 1ms solved his battery life problem (note that you usually set this parameter to the highest possible latency to save your battery on mobile devices)
this is by far the most interesting battery problem thread i have found in the past 2 weeks. this exactly describes the problem I've been having.
initially nothing was wrong for me either. straight out of the box went ok for months. i'm not sure, but i think it was 2.3.4. shortly after the stock official update (unbranded) update to android 4.0.3 i noticed the battery died in about a day, instead of 2 days.
things i tried thus far:
- flash 2.3.6 back. same problem.
- flash 2.3.4 back, same problem.
- since it sucks either way, i flashed the stock 4.0.3 again.
- disabled a whole ****load of apps i normally use. same problem.
- decided to root and flash dragonICS 4.0.4 with default siyah kernel
- swapped battery with a colleague who does not have this problem. same problem.
- reset battery thingy in extweaks, battery % reporting sucks big time since then, but essentially: same problem
- tried a lot of suggested tweaks in extweaks which are supposedly better. same problem.
- set syncing at a longer interval (even though it worked fine out of the box). same problem.
- disabling all the sensors i could (including rotation for the apps), wifi, data traffic in general. same problem.
- cut the light sensor polling interval in half (from 1sec to 2sec). same problem
- removed the SD-card, because god knows what conflict it could cause. same problem.
- removed sim card, since problems were reported between this phone, android4 and my provider. same problem.
- full battery drain and charge cycle. same problem
problem verification:
- battery monitor widget, which logs an obvious higher battery usage than my colleagues phone.
- badass battery monitor which clearly shows "kernel" and "android system" way up there, where it should never be.
- "system tuner" in the "task manager" section which shows "android system" and "/system/bin/surfaceflinger" using the most cpu time by far
- "cpu spy" shows the cpu most of the time in deep sleep, which looks pretty good to me.
i can see the android system is using a lot of time reading 2 sensors, which seem required by basic functioning of the device. screen rotating and brightness.
i am unable to find out what the kernel is doing with all it's time. but whatever the rom, it's doing something.
ps: not all tests were in this order or seperated as they are described.
better battery stats shows a few processes on top:
kworker/0:3
kworker/0:1
kworker/0:0
kworker/0:2
in this order
It was a hardware fault! Samsung replaced the planar, ... now it´s fine. Thanks to all replys and your help.
while i'm happy there is a solution i am wondering about the following:
how can software introduce a hardware fault?
Hello guys, i had some serious battery drain issues. I tried installing different roms with different Android versions but problem persists thru all of them. I seemed to have had best results with unofficial roms like OzcanRom. Now i got LineAge OS installed because android 5 is too outdated by today standards i miss allot apps. I will include BBS log as ive got no idea what to look for over :crying: there and i hope some of you guys can help me
I posted BBS log in paste bin as i didnt know how to make it work here. Here is the link: pastebin.com/AXJ9sz2g
Due to spam protection it didn't alow me to paste normal link but this will do just as good of a job
Im getting about 9hrs of stand by time with 1 hour of SOT.
Update
So after experiencing few more bugs with LineageOS i decided to revert back to OzcanRom and tweak it myself. I applied some tweaks with custom kelner, eliminated all wakelocks and background drains. Now i have around 13hrs on battery and 3hrs of SOT and now i dont have to carry 10000MAH external battery with me. If someone wants me to write in detail what ive done post reply or PM me
ognjen73 said:
Update
So after experiencing few more bugs with LineageOS i decided to revert back to OzcanRom and tweak it myself. I applied some tweaks with custom kelner, eliminated all wakelocks and background drains. Now i have around 13hrs on battery and 3hrs of SOT and now i dont have to carry 10000MAH external battery with me. If someone wants me to write in detail what ive done post reply or PM me
Click to expand...
Click to collapse
I would love to know that, just got a Galaxy Alpha at I plan to apply custom kernel and ROM, so which tweaks to use would be very helpful
Hi. Could you please tell me what to do to stop battery drain?
Ever since Samsung carrier specific phones have been becoming increasingly more difficult to root, the very first thing I do on my last 3 or 4 Samsung phones is get the package disabler to prevent any updates and notifications for updates. In hopes of getting root/custom recovery or maybe even magically unlock the bootloader asap, and don't want to accidentally download a patch the could prevent me from having the option. I am still running N950USQU1AQH7. I was wondering anyones opinions on weather or not I should just cave in finally now and accept that I won't be able to ever run root/xposed in the future of this phone.
I know we have that 80% battery root option, but I really would use that for Titanium Backup and possibly Greenify. Plus the 80 percent thing would drive my OCD nuts, even if if there is a visual only fix.
So I guess I'm asking, are there any significant benefits to finally updating my phone/firmware/moving on to 8.0? Or do you think there still may be a shred of hope for me?
I'm not really having any issues with my phone except for the bloatwares/Bixby junk I have disabled already.
hows your battery life so far??? I feel like oreo has made the battery drain quicker, but at the same time I have am a heavy user. I do alot of recording and editing on my device and I factory reset after updates. I remember when it would report 40 hrs of battery life, now I get 18 hrs.
I know its only a year old, but kind of a quick drop for a phone that was released at 1k
My Galaxy S7 (AT&T SM-G930A) was recently updated to Android 8 (Oreo). Since the update I am having issues with the volume. I plug my phone into a stereo receiver at work and we listen all day 12 - 14 hours. Nougat would often reset my volume after about 10 hrs of playing and display a warning about the dangers of listening to high volumes for extended periods. Since updating to Oreo the volume will reset randomly. It will not display a warning or reason it just resets. At first I thought it was because I was receiving a call or text or email but the random volume resets do not correspond to any notifications. This happens three or four times a day since the update.
The volume issues are just a minor issue compared to my battery life. I have a 33% reduction to battery life. Prior to the update I would plug in (to the stereo) my phone in the morning and after a 12 hr shift I would have about 20-25% left. Since the update I plug in (to the stereo) and after about 10 hrs I'm at 10-15%. I have not installed any new apps since the Oreo update and there are no other causes for the change in battery life.
The other main issue I have is speed. The phone is noticeably slower. Apps take longer to open and there is definite lag. Earlier today it took me a little over three minutes to pull up my navigation app and get directions. Prior to the update it would take around 30 seconds.
Here are my questions.
1) CAN I INSTALL A CUSTOM ROM? I had Cyanogenmod on my S4 and really liked it over the stock ROM. I think I would like to give Lineage a try but I still can't get a definite answer as to whether or not this can be done. Obviously I have the Snapdragon processor. Most of the information I'm finding is telling me that we can't install a custom recovery on Snapdragons yet, which means, no custom ROM. If I am wrong please provide me some current links.
2) If I can't install a custom recovery/ROM; CAN I REVERT TO NOUGAT OR MARSHMALLOW?
3) If I can't revert; WHAT CAN I DO THAT WILL PROVIDE ME WITH MORE IMMEDIATE SATISFACTION THAN WAITING FOR AT&T OR SAMSUNG TO FIX THIS CRAP?
paulrhyan said:
My Galaxy S7 (AT&T SM-G930A) was recently updated to Android 8 (Oreo)....
Click to expand...
Click to collapse
I don't have this device but, your best bet is to post this question within the following Q&A thread that's specific to your device and variants.
https://forum.xda-developers.com/showthread.php?t=3341138
Good Luck!
~~~~~~~~~~~~~~~
I DO NOT provide support via PM unless asked/requested by myself. PLEASE keep it in the threads where everyone can share.
I write a few times here Official Stock Firmware Thread (12th November 2018) - Galaxy S9+ (SM-G965F) but no one responds. Something drains a lot my battery since I'm on Pie and feels one else has it. Yesterday for example com.android.systemui take 60% of the battery. What can cause this? Can I somehow what process are hiding behind "com.android.systemui"?
I installed Better Battery Stats and type all the commands through adb fastboot. Will be able to see the issue with this app? Any info or advice will be appreciated.
mefistoreyon said:
I write a few times here Official Stock Firmware Thread (12th November 2018) - Galaxy S9+ (SM-G965F) but no one responds. Something drains a lot my battery since I'm on Pie and feels one else has it. Yesterday for example com.android.systemui take 60% of the battery. What can cause this? Can I somehow what process are hiding behind "com.android.systemui"?
I installed Better Battery Stats and type all the commands through adb fastboot. Will be able to see the issue with this app? Any info or advice will be appreciated.
Click to expand...
Click to collapse
You are in a Beta, expect issues like that... if not why you accepted the Beta.
Give feedback to Samsung so they can check what causes it and fix it on next beta update...
Sent from S.G. S9+ Duos
Thanks for the answer. I asked because didn't see someone else to have it. I am not officially in the beta so I can't give feedback. I think I fixed it by not using:
AOD
Edge Light
Location
Bluetooth
Dolby Atmos
Maybe those functions are under the process. Can't be sure, but it's not big deal, I can live without them
Ohhh haha... yeahp, then just wait for new beta builds to come out.
Sent from S.G. S9+ Duos